Meet The Team

Terra Petrophysics Team

With over 25 years experience you can be sure that if there is in an exploration concept that can be identified and tested then it will be found.

Barry Bourne

Consulting Principal

Global exploration experience ranging from greenfields exploration to mining. Demonstrated exploration success coupled with excellent geological/ technical ability.

Responsible for the establishment of three petrophyscal laboratories within Barrick Gold (USA, Australia and Zambia). Six years in-country experience in developing nations.

Member of the technical advisory committee that founded the Deep Exploration Technology Cooperative Research Center. Current member of the technical advisory committee for the Center for Exploration Targeting at the University of Western Australia and the Australian Society of Exploration Geophysicists Research Foundation.

An innovator, who has designed, proposed and implemented the full range of initiatives via experience gained whilst working within the mining industry. Shortlisted for the Australian innovation Awards in 2012. Advance Global Australian of the Year- Mining and Resources 2013.

Jarrad Trunfull

Project Geophysicist / Geologist

Jarrad graduated with a Bachelor of Science with Honours in Geology from the University of Western Australia. Prior to joining the Terra Resources team in May 2019, Jarrad worked as both a geologist and geophysicist with a number of companies including Barrick Gold, Rio Tinto Iron Ore, Southern Geoscience Consultants and Saracen Gold Mines. He has extensive experience in geophysical data acquisition, processing, modelling and interpretation, geoscientific data integration and interpretation, and exploration targeting. Jarrad is an active member of the Australian Society of Exploration Geophysicists (ASEG).

Key Skills and Strengths:

  • A strong focus on the integration of geological, geophysical, petrophysical and other datasets to increase understanding and generate effective drill targets.
  • Worked as both a geologist and a geophysicist, with experience across multiple commodities and deposit styles utilizing a variety of exploration methods.
  • Broad experience in geophysics survey planning, management of acquisition, data processing, modelling and interpretation.

JJ Leong


JJ graduated with an MSc in Petroleum Geoscience from Imperial College London and a BSc with Honours in Geophysics from Curtin University. Prior to joining Terra Resources in 2020, JJ has held a couple of roles across the mining, petroleum and software industries, including working as a geophysicist at Petroleum Geo-Services and solutions consultant at Dassault Systèmes.

He has experience in seismic imaging and interpretation and the exposure in conducting various geophysical studies on sites, including but not limited to seismic, gravity, magnetic and petrophysical surveys. He also has experience in using multiple geoscience softwares such as Oasis Montaj, Potent, Petrel, RokDoc, FEFLOW and ArcGIS.

Key Skills and Strengths:

  • processing of magnetic,gravity, radiometrics and remote sensing data
  • 2D and 3D seismic imaging and interpretation
  • forward modelling

Mila Markoski


Mila graduated with a Bachelor in Geology at the University of Calgary, Alberta, Canada. During her degree, she gained extensive knowledge on ore deposits and ore formation and acquired valuable field experience collecting and analysing data and mapping various geological deposits in several states in Canada, as well as Hawai’i, USA.

Mila is currently working at Terra as a Geoscientist, where she is performing petrophysical analysis on core samples to estimate the geophysical response of ore bodies. Mila is eager to learn about geophysical methods in mineral exploration, modelling and processing data while also combining it with her geological knowledge to make robust geoscientific interpretations.

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